BRAKE CONTROL VALVE REPAIR (CONT)

TM 10-3930-673-34

10-4. BRAKE CONTROL VALVE REPAIR (CONT)

(e)

Install filter (44), washer (43),

preformed packing (42), seat (41),

poppet (40), and spring (39).

(f)

Install preformed packing (38), and

adjusting screw (37). Tighten screw

to 15 - 20 lb-in. (1.69 - 2.26 Nm).

(g)

Install nut (36) and tighten to 15 -

20 lb-ft (20.34 - 27.12 Nm).

(h)

Install preformed packings (34 and

35) on insert (33). Use a wooden

dowel to push insert into brake

control valve.

(i)

Install spool (32) into insert (33).

Insert the short end of spool first.

TR00476

(j)

Install ball (31). Ensure that ball

rests on insert (33).

(k)

Apply grease on end of spring (29) to hold stop (30) in place. Install stop and spring.

(l)

Install preformed packing (28) and plug (27). Tighten plug to 40 - 50 lb-ft (54.23 - 67.79 Nm).

CAUTION

Ensure that ball is on seat before proceeding. Failure to do so could cause part damage.

(m) Apply grease to hold ball (26) and seat (25) to spring (24). Install ball, seat, and spring.

NOTE

The maximum accumulator pressure is adjusted by turning plug. The high pressure

limit is increased by turning plug into valve. The low pressure limit is decreased by

turning plug out from valve.

Ensure that plug is installed by turning plug same number of times as recorded

during disassembly.

(n)

Install preformed packing (23) and plug (22).

10-14